Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia
A particle tracking scheme that uses velocity output from an interannually varying forced run of a global ocean circulation model (Parallel Ocean Climate Model; POCM_4C) allows variability in the transport pathways across the Scotia Sea to South Georgia to be examined for the first time. The time-va...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/12474/ http://www.sciencedirect.com/science/article/pii/S0967063704000342 |
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ftnerc:oai:nora.nerc.ac.uk:12474 2023-05-15T13:45:11+02:00 Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia Thorpe, Sally E. Heywood, Karen J. Stevens, David P. Brandon, Mark A. 2004 http://nora.nerc.ac.uk/id/eprint/12474/ http://www.sciencedirect.com/science/article/pii/S0967063704000342 unknown Elsevier Thorpe, Sally E. orcid:0000-0002-5193-6955 Heywood, Karen J.; Stevens, David P.; Brandon, Mark A. 2004 Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia. Deep-Sea Research Part I, 51 (7). 909-920. https://doi.org/10.1016/j.dsr.2004.02.008 <https://doi.org/10.1016/j.dsr.2004.02.008> Marine Sciences Ecology and Environment Publication - Article PeerReviewed 2004 ftnerc https://doi.org/10.1016/j.dsr.2004.02.008 2023-02-04T19:28:00Z A particle tracking scheme that uses velocity output from an interannually varying forced run of a global ocean circulation model (Parallel Ocean Climate Model; POCM_4C) allows variability in the transport pathways across the Scotia Sea to South Georgia to be examined for the first time. The time-variant surface fluxes introduce realistic variability into the model velocity fields. This causes large variations in near-surface, mixed-layer transport from the Antarctic Peninsula region to South Georgia, an island in the southwest Atlantic sector of the Southern Ocean. The variability occurs on a variety of timescales with seasonal and longer periods of variability apparent in the 18 year time series of results. A quasi-four year period of variability is evident across the region in the sea surface temperature fields of POCM_4C and appears in the particle tracking results. This period, noted in other Southern Ocean data sets and ascribed to the Antarctic Circumpolar Wave, has been observed in the reproductive success of higher marine predators breeding on the island. The predicted oceanographic variability is likely to be significant for the South Georgia ecosystem by affecting the influx into the region of Antarctic krill (Euphausia superba), the main prey of the higher predators. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Scotia Sea Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic Antarctic Peninsula Scotia Sea Deep Sea Research Part I: Oceanographic Research Papers 51 7 909 920 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Marine Sciences Ecology and Environment |
spellingShingle |
Marine Sciences Ecology and Environment Thorpe, Sally E. Heywood, Karen J. Stevens, David P. Brandon, Mark A. Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia |
topic_facet |
Marine Sciences Ecology and Environment |
description |
A particle tracking scheme that uses velocity output from an interannually varying forced run of a global ocean circulation model (Parallel Ocean Climate Model; POCM_4C) allows variability in the transport pathways across the Scotia Sea to South Georgia to be examined for the first time. The time-variant surface fluxes introduce realistic variability into the model velocity fields. This causes large variations in near-surface, mixed-layer transport from the Antarctic Peninsula region to South Georgia, an island in the southwest Atlantic sector of the Southern Ocean. The variability occurs on a variety of timescales with seasonal and longer periods of variability apparent in the 18 year time series of results. A quasi-four year period of variability is evident across the region in the sea surface temperature fields of POCM_4C and appears in the particle tracking results. This period, noted in other Southern Ocean data sets and ascribed to the Antarctic Circumpolar Wave, has been observed in the reproductive success of higher marine predators breeding on the island. The predicted oceanographic variability is likely to be significant for the South Georgia ecosystem by affecting the influx into the region of Antarctic krill (Euphausia superba), the main prey of the higher predators. |
format |
Article in Journal/Newspaper |
author |
Thorpe, Sally E. Heywood, Karen J. Stevens, David P. Brandon, Mark A. |
author_facet |
Thorpe, Sally E. Heywood, Karen J. Stevens, David P. Brandon, Mark A. |
author_sort |
Thorpe, Sally E. |
title |
Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia |
title_short |
Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia |
title_full |
Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia |
title_fullStr |
Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia |
title_full_unstemmed |
Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia |
title_sort |
tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to south georgia |
publisher |
Elsevier |
publishDate |
2004 |
url |
http://nora.nerc.ac.uk/id/eprint/12474/ http://www.sciencedirect.com/science/article/pii/S0967063704000342 |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Scotia Sea |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Scotia Sea |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Scotia Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Scotia Sea Southern Ocean |
op_relation |
Thorpe, Sally E. orcid:0000-0002-5193-6955 Heywood, Karen J.; Stevens, David P.; Brandon, Mark A. 2004 Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia. Deep-Sea Research Part I, 51 (7). 909-920. https://doi.org/10.1016/j.dsr.2004.02.008 <https://doi.org/10.1016/j.dsr.2004.02.008> |
op_doi |
https://doi.org/10.1016/j.dsr.2004.02.008 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
51 |
container_issue |
7 |
container_start_page |
909 |
op_container_end_page |
920 |
_version_ |
1766215107049684992 |